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Monophyletic taxon:
Class
Hexactinellida
Schmidt, 1870
- hexactinellids
(sponge)
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Hierarchy
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Entity:
Silicispongia
..Demospongiae (Class) - demosponges
..†Stromatoporoidea (Class)
..Hexactinellida (Class) - hexactinellids
....Amphidiscophora (Subclass)
....†Azyrtalia (Genus)
....†Calcihexactina (Genus)
....†Dictyophon (Genus)
....†Flosculus (Genus)
....Hexasterophora (Subclass)
....†Hintzesnonaia (Genus)
....†Hunanospongia (Genus)
....†Nephelispongia (Genus)
....†Pachylepisma (Genus)
....†Textispongia (Genus)
Basic information
Period
:
Early Cambrian - Present [541 Ma - present]
Status
:
extant
Paleontology
Period
:
Ediacaran
-
Present
Ref:
1997
: 23/11/2004.
©2004-2026 Universal Taxonomic Services
Last updated:
28 Aug 2026